Results 1 to 10 of about 734 (161)

Reproductive Anatomy of Chondrichthyans: Notes on Specimen Handling and Sperm Extraction. I. Rays and Skates [PDF]

open access: yesAnimals, 2021
The superorder Batoidea (rays, skates, and relatives), constitutes one of the most threatened group of vertebrates. Strengthening ex situ conservation programs developed in research centers and public aquaria could be a way of addressing this situation ...
Pablo García-Salinas   +2 more
doaj   +2 more sources

Fin systems comparative anatomy in model Batoidea Raja asterias and Torpedo marmorata: Insights and relatioships between musculo-skeletal layout, locomotion and morphology. [PDF]

open access: yesJ Anat, 2023
This study analyses the macro‐ and micro‐morphology of the appendicular skeleton in the two species T. marmorata and R. asterias in relation to growth/calcification pattern and mechanics of the pectoral, pelvic and tail fin systems, suggesting a model for pectoral fins flexibility variation.
Pazzaglia UE   +6 more
europepmc   +2 more sources

New insights into life–history traits of Mediterranean Electric rays (Torpediniformes: Torpedinidae) as a contribution to their conservation

open access: yesZoology, 2021
Despite being commonly recognized by the general public, knowledge about the biology and life-history of electric rays is still scarce. Globally, according to the International Union for Conservation of Nature, more of the 80% of the species belonging to the Torpedinidae family are, indeed, classified as Data Deficient, so as, in most of the cases, no ...
Andrea Bellodi   +2 more
exaly   +3 more sources

Biological aspects of the common torpedo, Torpedo torpedo (Linnaeus, 1758) (Elasmobranchii: Torpedinidae), in the central Mediterranean Sea (Sicily, Ionian Sea) [PDF]

open access: yesThe European Zoological Journal, 2019
Data on the biology of Torpedo torpedo from the Ionian Sea are absent, and in the Mediterranean Sea, most of the published works focus on the reproductive biology of the species and are not recent.
F. Tiralongo   +3 more
doaj   +2 more sources

Comparative study on trace metal accumulation in the liver of two fish species (Torpedinidae): Concentration–size relationship

open access: yesEcotoxicology and Environmental Safety, 2013
Metal concentrations (Hg, Cd, Pb, As, Cr, Cu, Zn and Ni) were measured in the liver of two fish, Torpedo nobiliana (electric ray) and Torpedo marmorata (marbled electric ray), from the Mediterranean Sea in order to comparatively investigate their current pollution status.
Grazia Barone, Maria M Storelli
exaly   +5 more sources

The isolation of pure cholinergic synaptic vesicles from the electric organs of elasmobranch fish of the family Torpedinidae [PDF]

open access: yesBiochemical Journal, 1972
1. Zonal centrifuging permitted the separation, on the milligram scale and in a form largely free from contamination by soluble cytoplasmic protein or membrane fragments derived from other structures, of synaptic vesicles from the purely cholinergic terminals of the electric organ of Torpedo. Up to 100g of tissue could be processed in a single run.
V P, Whittaker, W B, Essman, G H, Dowe
exaly   +3 more sources

Notes on the synonymy of the Torpedinidae or Narcobatidae

open access: yesProceedings of the United States National Museum, 1896
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
exaly   +4 more sources

From historical expedition diaries to whole genome sequencing: A case study of the likely extinct Red Sea torpedo ray

open access: yesZoologica Scripta
Abstract Torpedo rays (Torpedinidae, Torpediniformes) are small to moderately large batoids that produce an electric discharge. They are distributed worldwide in temperate and tropical seas and are, as a result of their bottom‐dwelling behaviour, susceptible to trawl fishing and often end up as victims of bycatch.
Anja Palandačić   +2 more
exaly   +2 more sources

Acanthobothrium electricolum sp. n. and A. lintoni Goldstein, Henson, and Schlicht 1969 (Cestoda: Tetraphyllidea) from Narcine brasiliensis (Olfers) (Chondrichthyes: Torpedinidae) in Colombia

open access: yesJournal of Parasitology, 1978
Acanthobothrium lintoni and a new species of Acanthobothrium are reported from the lesser electric ray Narcine brasiliensis in Colombia. The new species resembles all other members of the genus parasitizing torpedinids by having a relatively small scolex, long and spinose cephalic peduncle, fewer than 75 testes per proglottid, an indistinct genital ...
Brooks, Daniel R., Mayes, Monte A.
exaly   +3 more sources

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